APA引文

Kral, T. (1993). American panorama: English through content :American history. D.C.: U.S. Information Agency.

Trích dẫn kiểu Chicago

Kral, Thomas. American Panorama: English Through Content :American History. D.C.: U.S. Information Agency, 1993.

MLA引文

Kral, Thomas. American Panorama: English Through Content :American History. D.C.: U.S. Information Agency, 1993.

警告：這些引文格式不一定是100％准確.